Klein Situational Awareness Bluetooth® Earmuffs brs1100 A modacrylic and cotton-blend shell

A modacrylic and cotton-blend shell provides a comfortable and snug fit that keeps the cold air out

A precision-machined knife-and-anvil style cutting system ensures perfect mating

perfect for any job

Seat for VOLT harnesses installs in the two side slots of the harness for increased comfort during prolonged suspension

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Klein Situational Awareness Bluetooth® Earmuffs brs1100 A modacrylic and cotton-blend shellKlein Tools Cat. No. AESEM1S Earmuffs are engineered to incorporate both Situational Awareness and Bluetooth technologies for connectivity to surroundings and music. The dual knob design featuring unique grooves for easy identification enables users to precisely adjust their Situational Awareness or Bluetooth volumes. Ergonomically designed vented headband provides cool comfort for all day wear. These earmuffs charge in 2 hours, providing 25 hours of